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We Service Mill Valley!
Mill Valley’s lush landscape and steep hillsides are beautiful but pose serious structural risks. Homes here are often built into sloped terrain where soil erosion and shifting are common—especially after heavy rains. This constant soil movement can cause foundations to settle or shift, leading to visible cracks, uneven flooring, and compromised structural stability.
The city’s location near the San Andreas Fault means seismic safety is a top priority. Many Mill Valley homes—particularly older ones—may lack the structural reinforcement needed to withstand significant ground shaking. Seismic retrofitting, including bolting and cripple wall bracing, is an effective way to help protect against earthquake-related damage and preserve the home’s integrity.
Mill Valley also sees its share of drainage issues due to runoff from surrounding hills and the area’s wet winters. Without proper drainage systems in place, water can pool around the foundation, leading to hydrostatic pressure and potential water intrusion. French drains, swales, and sump pumps can help redirect water and protect homes from moisture-related structural problems.
Drainage Project Example
Drainage Project from our files: To correct drainage problem, we will dowel into the existing retaining wall located adjacent to the right rear corner of the building and form and pour a new 18 feet long concrete footing (which will also serve to support the existing...
Drainage System Installation Example
Scope of Work We will construct a drainage system along the right, rear, and left sides of your home. The system will start on the right side adjacent the rear of the garage with a trench 2 feet deep. From here it will extend along the right side to the rear corner,...
Drainage Near Retaining Wall
Drainage Near Retaining Wall We will install approximately 120 lineal feet of surface drainage system around the pool in the areas marked by owner, and below the retaining wall. We will provide stub ups only, no drains or grates are included. We will expose...
Patio, Catch Basin, Drainage Example
We will remove and not replace a portion of the front flagstone patio, install a new 8 inch catch basin, and discharge the new drain through a 4 inch solid pipe across your front yard and through the existing pipe that penetrates the left side retaining wall. We will...
Foundation Replacement Example
1. Construct approximately 88 lineal feet of concrete foundation with 2x6 pressure treated sills and 5/8 inch anchor bolts, (Stab bolts for holdowns to be supplied and placed by others). Access door to be constructed and installed by others. 2. Construct seven 2 feet...
Basement drainage repair example
We will construct a drainage system around the lower basement area. The system will be constructed in 2 legs, starting on either side of the basement entry stairs, and discharging into a sump located on the right side of the house, (3 sides of this system will be...
Garage Foundation and Drainage Example
On the garage we will do the following work: 1. Slope trenches and lay 140 lineal feet of 4 inch perforated pipe in previously excavated areas surrounding new foundation walls. The pipe to tie into new discharge pipe installed by Alderson Construction. 2. ...
Spa installation example
On the new spa we will do the following work: 1. Tune and lay approximately 100 lineal feet of 4 inch perforated pipe in previously excavated areas surrounding new foundation/retaining walls. The pipe to connect to the existing 6 inch discharge pipe. The portion on...
Drainage, Underpinning Example
We will construct a drainage system along the rear and right sides of your home. The system will start at the left rear corner with a trench 4 feet deep. From here it will extend along the rear to the right corner, then continue along the right side to the front...
Home Drainage System
We will construct a drainage system along the rear and right sides of your home. The system will start at the left rear corner with a trench 4 feet deep. From here it will extend along the rear to the right corner, then continue along the right side to the front...